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Solar Panel Structures Composition
Xiamen Sunforson Power Co.,Ltd | Updated: Aug 25, 2017

Structure and composition:

1) the role of tempered glass to protect the main power generation (such as battery), light selection of its choice is required,

Transmittance must be high (generally more than 91%);

Ultra-white steel processing

2) EVA used to bond fixed glass and power generation main body (such as battery), transparent EVA material directly affect the quality of the component life, exposure to air in the EVA easy to aging yellow, thus affecting the component's light transmittance , Thus affecting the quality of components in addition to the quality of EVA itself, the components manufacturers of laminated technology is also very large, such as EVA glue degree is not up to standard, EVA and tempered glass, backplane bonding strength is not enough, will cause EVA early Aging, affecting component life.

3) The main role of the battery is the power generation, power generation main market is the mainstream of crystalline silicon solar cells, thin film solar cells, both of their advantages and disadvantages. Crystalline silicon solar cells, the cost of equipment is relatively low, but the cost of consumption and battery sheet is high, but the photoelectric conversion efficiency is also high, in the outdoor sun power generation more suitable for thin-film solar cells, the relative cost of equipment, but the cost of consumption and battery Very low, but the photoelectric conversion efficiency relative to the crystalline silicon cell more than half of the point, but the low light effect is very good, in the ordinary light can also generate electricity, such as the calculator on the solar cell.

4) EVA role as above, the main adhesive package of the main power generation and backplane solar panels

5) Backplane, sealed, insulated, waterproof (generally TPT, TPE and other materials must be anti-aging, most of the components manufacturers are guaranteed for 25 years, tempered glass, aluminum alloy is generally no problem, the key in the back and Whether the silica gel meets the requirements.

6) aluminum alloy protective laminates, from a certain seal, support role

7) Junction box to protect the entire power generation system, play the role of the current transfer station, if the component short-circuit junction box automatically disconnect the short-circuit battery string, to prevent burning the entire system The most critical of the junction box is the choice of diodes, Of the different types, the corresponding diode is not the same

8) Silicone seal, used to seal components and aluminum alloy frame, components and junction box at the junction of some companies use double-sided tape, foam instead of silica gel, the domestic use of silica gel, the process is simple, convenient, easy to operate, and cost Very low

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